Feeler to stop loom



` April 2s, 1931.

H.` HOWARTH FEELER To sToP Loom Filed March 27. 1929 2 Sheets-Sheet l um f W w W l m H l nw u Z W jm u d ||||||||w..wh i f da 0 n 1 Z 6 H April 28, 1931. H. HowARTl-l l 1,803,183

FEELER 1Q sToP Loon Filed March 27, 1929 2 Sheets-Sheet 2 Patented Apr. 28, 1931 Y UNITED 'STATES-- PATENT: OFFICE EAEEY HOWAETH, or r-EovT-DENCE,l RHODE vkISEANn, ASSIGNoR To CEoMr-{Tona ENoWLES LooMWoRxs, or:A WoECESTEE, MASSACHUSETTS, 5A CoEPonAT-ICN or MASSACHUSETTS EEELEE; To STor Looivr f Appnclanon le'dnarchaaiezs. iser'iarno. 350.416., f i

`vThis invention relates to improvements in stopping mechanism for looms and it is the principal object of the invention to -provide improved'means for stopping the loom prior to the complete exhaustion of weft in the runing shuttle. Y Y"It isa further object of my present invention toprovide a simple form of connection between the weft detector` and the loom stopping mechanism, said mechanism comprising a minimum number ofparts Aand operating preferably on the indicating stroke of the lay to stop theloom. v

It iS a `still further object of my present invention to provide knocking-off mechanism so related to thev weft detector that the weight of said mechanism acts to return the detector to normal position after an indicating movement thereof. A c f With these and other objects in view which will appear as the description proceeds, my

linvention resides i-n the combination and'arrangement oflparts hereinafter described and set forth in the claims. l j c In the accompanying drawings wheremA a convenient embodiment of my invention is setforth, v r

Fig. 1 is an end elevation of ya portionof a loom 4having' myv` invention, applied thereto, the klay andcertain parts carried thereby being in section, l'

Y Fig. 2 is a top'L plan view of a portion o'f'ia mechanismv shownginFig. 1,- parts being vbroken away for purposes of illustration,

,.Fig. 1,

f Fig. 3 is a vertical section on line3-3 rof Fig. lisa top planview taken detector controlledmechanism.

Ation of arrow 4,Fig. j31the4 detector being l `shown in indicatingpositionand Iaportion of M the cover beingremoved,and

Fig. 5 is a v1ew Similar to apotion of 1, indicating the operatingmovements ofthe `Referring ;to Figs. land 2,1'haveu'shown Y, aloomside 10 in which is mounted jforfrotation a shipper .rod 11.', A Shipper handle 12 moves' pivotally about fthemed-11 and has a cam slot13 in the'ends of whichare notches tends into the' slot 13v andisvproportionedto enter the notches, depending upon the position ofthe shipper handle 12. When the parts are inthe position Vshown in Fig'.-1j, the lever' 16 will be moved to disconnect the driving lmechanism not shown from the loom, but

when'the shipper handle fis moved to the left or forwardly, as viewedrin Fig. 1, said lever 116 will be moved to applythe powergto the oom'. A

and has a horizontal rearwardly projecting arm 19 which is pivotally connected. as at 20 to the forward end of a brake controlling rod21.A The arm 19 has a dependingrfinger tioned to engage that portion of theL shipper l handle 12 which -is below the rod 11.( Whenv y the brakeis ofil the/handle 18 will bein the 0 .pivotal connection 2O being slightly labove a position Shown in Fig. 1, the center -of the linel joining the axis of rod 11 and theaxis around whichthe rearfend of the brake con- Atrollingrod 21 moves. I have not 'shown herein ythe particular brake mechanism to' kwhich the rod is connected, but the same is wellunderstood andthe parts are so related klthat'the'rod 18 held in the' position shown `iii-Fig. 1 because of the relation of .stud ,.20

with respect to the'rod 11V and the connection A bracket'24 is secured to the loomside and `has rotatably mounted therein a rock shaft 25 longitudinal motion of which inone dic yrectionfV is limitedby ka kcollar 26 .held to the Vshaft by a set screw 27.

.'A'bracket 28 secured to the loom frame supthe carrier. The arm has 'a forwardly ex= tending tail 35 and'iis normally held rearwardly by means of a vcompression spring 36 therear endof which engages the 'detect0r at and forward 'end o'fwhich engages m e. 60 i "A brake lever 18 is pivoted to the shaft 11 22from which extends a set screw 23 posil 4 y B0 i ofthe rod 21 with the braking mechanism.

a wall 88 of the bed 30. The effect of spring 36 is to hold the carrier 32 and detector .53

spring,.-

As shown in Fig. 3 the base 29`isprovided with a stud 10 on which is pivoted'an inditail 35.

Under normal conditions the shipper and brake levers will be in ruiming position and as thel lay moves forwardly with afu'll supplyv of weftW the detector 33 and Carrier 82 will move forwardlyl without relative. angular movement, the arm e2 vof the indicating lever 11' remaining at rest; Vhen insuiiicient yarn remains'on the bobbin, however, the detector 33 will move to thefrght aS shown-in Fig. l, the tail-35 moving' to the .left around the stud 811 to rock theindicating lever 41 from the dotted to the full line'pos'ition shown in Fig. 8( VS- The matter thus far Vdescribed is wellyknown` and formsno part of my present invention, the shipping and braking mechanism being the same" as thatyused for a number of years'k onn a commercial form ofnonautomatic loom and the detector beingof the form shown, in, the application Ser. No.

@lnV carrying my invention into effect I provide simpleY connecting mechanism between the detector and the brake lever l8- 1 formV the latter with aforwardlyextendng erin 50 havingadj'us'tably securedtherein e stop screw 51 the lower end of which ie previdedI with av rounded-head 52. I secure to the rock shaft 25 a knock-off member 53 having an' 'upwardly facing surface 54 forengag'emerit with the hea-d 52. 4The knock-ofi inemberis provided with .a depending arm y545 .to which is pivoted as at .55 a rod head 571. The latterhas adjustable connection with a rearwardly projecting' dagger or controller 58 which is'supported Vpartly .by means of a link .5.9 SJhWl more particularly in Fig. 3. Link 59 has the lower end thereof vbent upwardly to form a hook 60 to receive the rearl end of the dagger 58. The npper'e'nd of said link is connected etY 61V to an arm 62 formed gral with the indicating lever 41;.

tion to receive a shttleS has a small br'e'Cket (S3-secured to the front facethereof, and said bracket is provided with a vertical slot 64 lti-irough Wllh extendsthe-threaded en d65 present in' the ruiming shuttle the dagger or controller 5.8 will lie belowthev bunten When the weft is exhausted, however, vthe indicat- The lay L which may be 0f 'sual'conetrncing lever 41 Will rock to the full line position shown in Fig. 3, as previously described, thereby lifting the dagger 58 to the position shown in Fig. 5, where it will be in the path of the advancing bunter 66. The latter will engage the dagger shortly before the lay reaches its extreme forward positionl and as `the lay completes its forward stroke, the catlngleverV having' an upwardly extend-i"V ing arm 42V which lies inthe p'athof the' dagger will move forwardly and thereby cause rocking of. the knock-off` memberr 53. The surface 54 of the latter-1; will thereupon liftthehea'd 52 of the nut 51 to effect rocking movement of the brake lever 18 in a clockwise direction around the shipper shaft 11 as viewed in Fig, 1.

As. soon as the vstud 2O passes' a'fp'redetermined positionfin its downward movement the screw 23 will be forcedgagainstthe lower part of the shipper lever and'tliel'atter will loe moved from running to stopping'position. Under these conditions the braleis" applied and the shipper handle acts" to' movethe shipperlever 16 to loom stopping position. It will be noted'that' this operation takes placev during the forward' stroke of the lay on the'indicatingbeat of the latter. As'soon as the lay is moved rearwardly far en'ongh to effect disengagement between the dagger and the bunter said; dagger and the link` 59 will. act by their'weightto restorei the indi'- catng lever elfo normal position andl assist also in returning'the detector to normal position. f`

From theforegoing it will be seen that have provided avery'simple connection between theweft detectorand a loom stopping Inechanism,.thfe connections being effective by 4their Weight to restore the indicating lever ltonormjal positione tw'll elsO be noted that the stopping of theloom'is effected on the forward stroke'y of the lay upon which Gatien of exhaustion yis given.

Having thns described my invention it will inditbe seen that changes and modications be madetherein by thoseskilled in the art ywithout departing from the spirit and scope ,of the' invention and I do not wishV to be a lay, a bunter. mounted YOn and moving ferwa'r'dly with the lay, loom stopping devices normallyinrunnngpOSiOD, 2i dagger Opelatively connected to the devices and normally 'ont' of the path of movement ofthe bunter,

.an indicating lever to be moved the detecter when the' .latter gives ndeetn'ofweft exhaustion inthe running Shuttle, and connections between the dagger-T and' the' lever 'whereby .said lever is eeeeve .to-lift'the dagger vinto the path 9i .Incvfeinentof the bunterenindicatng beats. kOifbe 100m' t0 cause' saidv` lay during the' Ylast part @fw-its forward stroke to move the stopping devices to loom stopping position, the weight of the dagger acting to restore the indicating lever to normal position. f

2. In stopping mechanism for a loom, weft detecting mechanism to indicate the near approach of exhaustion in the active shuttle, a lay, a bunter mounted on and moving for-k wardly with the lay, loom stopping devices normally in running position, a dagger operatively connected to the devices andvnorf mally out of the path of movement of the bunter, an indicating lever tobe moved by the detector when the latter givesV indication of weft exhaustion in the running shuttle,y

and connections betweenthe dagger and the lever whereby said lever is effective to lift the dagger into the path of movement ofthe bunter on indicating beats of the loom to A cause said lay during the last partv of its,

forward stroke to move the stopping devices to loom stopping position, the weight of the` dagger and connections actingto assist in'V tive to lift the dagger into cooperative relationship with the lay on indicating'beats of* the loom when the detector element moves singularly, to cause the layto move the dcvices to loom stopping position, the weight of the dagger being exerted on the backward stroke of the lay following indication to move the detector element angularly back to its normal position. A y e Y In testimony whereof I have hereunto aliixed my signature.

. HARRY I-IOWARTH. e

dagger and the element of the detector elile'ce 

